The Caspian Shrew occurs along the Caspian coast in Iran and Azerbaijan. Its type specimen came from the southern Caspian shore of Iran.
It is covered in chocolate-brown fur.
A 2011 barn-owl pellet study found remains identified at the time as Crocidura suaveolens caspica among prey remains from Anzali, Gilan.
During a 2015–2016 survey, one dead individual was found in the central part of Anzali Wetland, Iran.
An extinction-risk assessment has not been added yet.